usepackage{apacite}

....

bibliographystyle{apa}
bibliography{Bibl}

@misc{western sahara_2017,
url={https://www.britannica.com/place/Western-Sahara},
journal={Encyclopædia Britannica},
year={2017}
},

@misc{gross enrolment ratio unesco uis_2018,
url={http://uis.unesco.org/en/glossary-term/gross-enrolment-ratio},
journal={Uis.unesco.org},
year={2018}
},

@book{alby_2017,
series={Eco-Conjoncture},
title={Morocco: seeking a second wind},
url={http://economic-research.bnpparibas.com/Views/DisplayPublication.aspx?
type=document&IdPdf=29710},
institution={BNP Paribas Economic Research},
author={Alby, Stéphane},
year={2017},
pages={18},
collection={Eco-Conjoncture}
},

@misc{gilson miller_swearingen_barbour_brown_laroui_2017,
title={Morocco},
url={https://www.britannica.com/place/Morocco},
journal={Encyclopædia Britannica},
author={Gilson Miller, Susan and Swearingen, Will and Barbour, Nevill and
Brown,
Carl and Laroui, Abdallah},
year={2017}
},

@book{the world bank_2017,
series={Moroccos Economic Outlook},
title={Moroccos Economic Outlook - October 2017},
url={http://pubdocs.worldbank.org/en/825991507055173839/MEM-Oct2017-Morocco-
ENG.pdf},
institution={World Bank},
author={The World Bank},
year={2017},
pages={1-2},
collection={Moroccos Economic Outlook}
}

cite{alby_2017}